USPTO Examiner FREAY CHARLES GRANT - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19213707SPLIT-TYPE PLUNGER PUMP AND SPLIT-TYPE PLUNGER PUMP COMPONENTMay 2025March 2026Allow911YesNo
19205460RUBBER COMPOUND REINFORCED WITH ALTERNATIVE FIBERSMay 2025February 2026Allow900YesNo
18849115CO-ROTATING SCROLL COMPRESSORMay 2025February 2026Allow1700YesNo
19195010FLUID ENDApril 2025January 2026Allow820YesNo
19077200FLUID ENDMarch 2025April 2025Allow100YesNo
19060776WATER PUMPS FOR LANDSCAPE WATERFebruary 2025March 2026Allow1210YesNo
19050387SCROLL COMPRESSORFebruary 2025February 2026Allow1200NoNo
19026347Air Pump Device with Accessories Storage FunctionJanuary 2025July 2025Allow620YesNo
18988923AIR QUALITY SENSING MODULE IN HANDHELD DEVICE AND AIR PUMPDecember 2024October 2025Allow1020YesNo
18983546FLUID ROTARY MACHINE WITH AN ENCODER MODULEDecember 2024March 2026Allow1510NoNo
18978776DUAL-MODE COMPRESSORDecember 2024January 2026Allow1310NoNo
18970700HEAT EXCHANGER FOR HYDRAULIC POST-TENSIONING JACK SYSTEMDecember 2024August 2025Allow820YesNo
18960118COOLING SLEEVE FOR USE WITH A FLUID ENDNovember 2024August 2025Allow821YesNo
18960854LANDFILL PUMP HAVING METERED CYCLINGNovember 2024July 2025Allow720YesNo
18955006MEDICAL FLUID THERAPY MACHINE INCLUDING READILY ACCESSIBLE PNEUMATIC MANIFOLD AND VALVES THEREFORENovember 2024January 2026Allow1410YesNo
18954219PAP SYSTEM BLOWERNovember 2024June 2025Allow600YesNo
18904180TIRE INFLATION APPARATUSOctober 2024March 2026Allow1710YesNo
18849446PRESSURE EXCHANGERS WITH FOULING AND PARTICLE HANDLING CAPABILITIESSeptember 2024April 2025Allow700YesNo
18829964FLUID END ASSEMBLYSeptember 2024March 2025Allow610YesNo
18807714BEARINGS FOR ELECTRIC SUBMERSIBLE PUMPSAugust 2024October 2025Allow1410NoNo
18804490FRACTURING APPARATUS AND VIBRATION REDUCTION METHOD THEREOFAugust 2024February 2026Allow1810NoNo
18803162METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSORAugust 2024October 2025Allow1510NoNo
18773050FLUID PUMP HAVING AT LEAST ONE IMPELLER BLADE AND A SUPPORT DEVICEJuly 2024June 2025Allow1110YesNo
18742667FLUID ENDJune 2024December 2024Allow610NoNo
18736090FLUID ENDJune 2024December 2024Allow610YesNo
18679539NOVEL ROD-PUMP CONTROLLERMay 2024July 2025Allow1400NoNo
18666380TIRE INFLATION APPARATUSMay 2024February 2026Allow2110YesNo
18651148FRACTURING APPARATUSApril 2024June 2025Allow1410YesNo
18701637PIEZOELECTRIC VALVEApril 2024December 2025Abandon2010NoNo
18699720MICRO DIAPHRAGM PUMPApril 2024February 2026Abandon2210NoNo
18604894COMPACT MULTI-CHAMBER FOAM-AT-A-DISTANCE PUMPS AND DISPENSERSMarch 2024January 2026Allow2310YesNo
18597961BLOWERMarch 2024January 2026Allow2310NoNo
18436915PREDICTIVE TUBE FAILURE DETECTION FOR PUMPFebruary 2024September 2025Allow1900YesNo
18294448Method for Determining Control Model Parameters of a Control Model of an Axial Piston PumpFebruary 2024September 2025Allow1910YesNo
18429628PAP SYSTEM BLOWERFebruary 2024August 2024Allow601YesNo
18423797ELECTRIC SUBMERSIBLE PUMP (ESP) SYSTEM AND METHODJanuary 2024September 2025Allow1900YesNo
18418005ELECTRICAL SUBMERSIBLE PUMP CONTROLJanuary 2024January 2025Allow1210NoNo
18409532AUTOMATICALLY DETERMINING FLOW TYPE HISTORIES FOR FRACK PUMPS AND MANAGING USAGE THEREOF USING THE FLOW TYPE HISTORIESJanuary 2024October 2024Allow910YesNo
18400484CAN SYSTEM AND DUAL ELECTRIC SUBMERSIBLE PUMP DEVICEDecember 2023June 2025Allow1810YesNo
18399058PROTECTION OF MAKE-UP SYSTEM FOR HIGH PRESSURE BELLOWS-STYLE PUMP SYSTEMDecember 2023February 2026Allow2621YesNo
18397567MOBILE FRACTURING PUMP TRANSPORT FOR HYDRAULIC FRACTURING OF SUBSURFACE GEOLOGICAL FORMATIONSDecember 2023January 2026Allow2520NoNo
18396820PAP SYSTEM BLOWERDecember 2023April 2025Allow1611YesNo
18569876INSTALLATION FOR PUMPING CRYOGENIC FLUID AND FILLING STATION COMPRISING SUCH AN INSTALLATIONDecember 2023February 2026Allow2620NoNo
18537182DRIVE SYSTEM FOR A POSITIVE DISPLACEMENT PUMPDecember 2023November 2024Allow1110YesNo
18529088ELECTRIC CYLINDER DRIVING DEVICE AND WALKING BEAM PUMPING UNIT INCLUDING ELECTRIC CYLINDER DRIVING DEVICEDecember 2023December 2025Allow2410NoNo
18529918DYNAMIC COMPRESSOR CONTROLSDecember 2023June 2025Allow1821YesNo
18521619Semi-Trailer-Loaded Turbine Fracturing EquipmentNovember 2023October 2025Allow2311YesNo
18516567POWER SOURCES AND TRANSMISSION NETWORKS FOR AUXILIARY EQUIPMENT ONBOARD HYDRAULIC FRACTURING UNITS AND ASSOCIATED METHODSNovember 2023June 2025Allow1910YesNo
18561696MICROFLUIDIC PUMP CONTROLNovember 2023July 2025Allow2010YesNo
18507976VARIABLE TORQUE CONVERTER FOR BOREHOLE OPERATIONSNovember 2023June 2025Abandon1911YesNo
18507212FRACTURING OPERATIONS PUMP FLEET BALANCE CONTROLLERNovember 2023December 2024Allow1320YesNo
18493526FLUID END ASSEMBLYOctober 2023May 2024Allow701NoNo
18490864FLUID END ASSEMBLYOctober 2023July 2024Allow911YesNo
18381810ROLLING DIAPHRAGM PUMPOctober 2023July 2025Allow2110YesNo
18485441SUBSTANCE DELIVERY DEVICEOctober 2023September 2025Abandon2310NoNo
18486025Pump Packing Monitoring SystemOctober 2023November 2025Allow2511YesNo
18484650ELECTRICAL SUBMERSIBLE PUMP WITH SINGLE DIRECTION LUBRICANT FLOWOctober 2023July 2025Allow2210YesNo
18482242PROCESS FOR SENSORLESS DETECTION OF STROKE EXECUTION IN A MAGNETIC PUMPOctober 2023September 2025Allow2410YesNo
18372498USING BALLOON AS DAMPER FOR PORT OF A RECIPROCATING PUMPSeptember 2023February 2025Allow1710YesNo
18551342DECOMPRESSION SYSTEM, CONTROL DEVICE, AND CONTROL METHODSeptember 2023July 2025Allow2210YesNo
18465819INTEGRATED ELECTRO-HYDRAULIC UNIT HOUSINGSeptember 2023July 2025Allow2210NoNo
18464316METHOD FOR MONITORING OPERATION OF LIQUEFIED NATURAL GAS (LNG) STORAGE AND INTERNET OF THINGS SYSTEM (IOT) THEREOFSeptember 2023December 2025Allow2710YesNo
18463748LIQUID-COOLED FRACTURING SYSTEMSeptember 2023August 2025Allow2410YesNo
18548688METHOD AND PUMP FOR LOW-FLOW PROPORTIONAL METERINGSeptember 2023September 2025Allow2510YesNo
18237476PERISTALTIC PUMP TUBING MOUNT AND ITS USEAugust 2023January 2026Allow2910YesNo
18237721MOTORIZED PRESSURE EXCHANGER WITH A LOW-PRESSURE CENTERBOREAugust 2023May 2024Allow910YesNo
18278810High-power five-cylinder drilling pump set, solid control system and drilling rigAugust 2023November 2025Allow2710NoNo
18237433Sieve ModuleAugust 2023January 2026Allow2910NoNo
18453820BOOSTER PUMP CONTROLLER AND METHOD OF USEAugust 2023February 2025Allow1800YesNo
18262437FUEL CELL MEMBRANE HUMIDIFIERJuly 2023October 2025Allow2710YesNo
18261976PROGRAM UPDATE METHOD FOR THE GAS COMPRESSOR SYSTEMJuly 2023March 2025Allow2020NoNo
18350780Liquid Cooling Pumping UnitJuly 2023May 2025Allow2310YesNo
18216742CENTRIFUGAL COMPRESSORJune 2023February 2025Allow2000NoNo
18269008DEGASSING APPARATUSJune 2023January 2026Allow3110YesNo
18331430PUMP INTEGRATED WITH TWO INDEPENDENTLY DRIVEN PRIME MOVERSJune 2023April 2024Allow1000YesNo
18324746LOW-PROFILE SOLAR-POWERED FLOOD CONTROL DEVICEMay 2023August 2023Allow310YesNo
18317536SYSTEMS AND METHODS FOR OPERATION MODES FOR AN AIR COMPRESSORMay 2023May 2025Allow2401YesNo
18316725METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSORMay 2023May 2024Allow1210YesNo
18196001SYSTEMS AND METHODS TO MONITOR, DETECT, AND/OR INTERVENE RELATIVE TO CAVITATION AND PULSATION EVENTS DURING A HYDRAULIC FRACTURING OPERATIONMay 2023October 2025Allow2900YesNo
18313515FLUID ENDMay 2023February 2024Allow910YesNo
18307177FRACTURING APPARATUSApril 2023January 2024Allow910NoNo
18307574DIAPHRAGM PUMPApril 2023February 2025Allow2210NoNo
18307505FRAC PUMP SYSTEMApril 2023October 2025Allow3050YesNo
18249278VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSORApril 2023July 2025Allow2720YesNo
18299939RODLESS PUMP AND MULTI-SEALING HYDRAULIC SUB ARTIFICIAL LIFT SYSTEMApril 2023February 2024Allow1010YesNo
18127841SYSTEMS AND METHODS OF UTILIZATION OF A HYDRAULIC FRACTURING UNIT PROFILE TO OPERATE HYDRAULIC FRACTURING UNITSMarch 2023October 2023Allow710YesNo
18125334MINIMIZING MIXING IN A PRESSURE EXCHANGERMarch 2023October 2025Allow3131YesNo
18181533WATER PUMPS FOR URBAN WATER LANDSCAPESMarch 2023December 2024Allow2110NoNo
18116383POWER SOURCES AND TRANSMISSION NETWORKS FOR AUXILIARY EQUIPMENT ONBOARD HYDRAULIC FRACTURING UNITS AND ASSOCIATED METHODSMarch 2023August 2023Allow610NoNo
18175856SELF-ENCAPSULATED ELECTRICAL SUBMERSIBLE PUMP (ESP)February 2023February 2025Allow2410NoNo
18112550ELECTROCHEMICAL COMPRESSORFebruary 2023March 2024Allow1300YesNo
18167676FRACTURING EQUIPMENT HAVING MULTIPLE ELECTRIC-POWER SUPPLIESFebruary 2023April 2025Allow2611YesNo
18167723METHODS, SYSTEMS, AND APPARATUS TO CONTROL A FLUID PROVIDED TO COMPONENTS IN A FLUID PUMP OF A CLOSED LOOP SYSTEMFebruary 2023October 2025Allow3211NoNo
18105992SYSTEM AND METHOD FOR EVALUATING RECIPROCATING DOWNHOLE PUMP DATA USING POLAR COORDINATE ANALYTICSFebruary 2023October 2024Abandon2011NoNo
18157973FLUID ENDJanuary 2023February 2024Allow1220NoNo
18098761FLUID PUMP HAVING AT LEAST ONE IMPELLER BLADE AND A SUPPORT DEVICEJanuary 2023April 2024Allow1520YesNo
18146744DIAPHRAGM POSITION CONTROL SYSTEMDecember 2022March 2025Allow2720NoNo
18012347LEAK DETECTION FROM DIAPHRAGM COMPRESSORDecember 2022August 2025Allow3210YesNo
18084880ELECTROMAGNETIC PUMPDecember 2022February 2025Allow2610YesNo
18066499FRACTURING EQUIPMENTDecember 2022December 2024Allow2410NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner FREAY, CHARLES GRANT.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
29
Examiner Affirmed
20
(69.0%)
Examiner Reversed
9
(31.0%)
Reversal Percentile
47.6%
Lower than average

What This Means

With a 31.0% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
68
Allowed After Appeal Filing
16
(23.5%)
Not Allowed After Appeal Filing
52
(76.5%)
Filing Benefit Percentile
32.1%
Lower than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 23.5% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable reconsideration.

Strategic Recommendations

Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.

Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner FREAY, CHARLES GRANT - Prosecution Strategy Guide

Executive Summary

Examiner FREAY, CHARLES GRANT works in Art Unit 3746 and has examined 1,913 patent applications in our dataset. With an allowance rate of 78.3%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 31 months.

Allowance Patterns

Examiner FREAY, CHARLES GRANT's allowance rate of 78.3% places them in the 46% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by FREAY, CHARLES GRANT receive 1.60 office actions before reaching final disposition. This places the examiner in the 31% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by FREAY, CHARLES GRANT is 31 months. This places the examiner in the 58% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +24.8% benefit to allowance rate for applications examined by FREAY, CHARLES GRANT. This interview benefit is in the 71% percentile among all examiners. Recommendation: Interviews provide an above-average benefit with this examiner and are worth considering.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 27.8% of applications are subsequently allowed. This success rate is in the 49% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 57.5% of cases where such amendments are filed. This entry rate is in the 83% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 35.3% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 34% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 58.0% of appeals filed. This is in the 32% percentile among all examiners. Of these withdrawals, 27.5% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows below-average willingness to reconsider rejections during appeals. Be prepared to fully prosecute appeals if filed.

Petition Practice

When applicants file petitions regarding this examiner's actions, 42.4% are granted (fully or in part). This grant rate is in the 34% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 7.0% of allowed cases (in the 89% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 8.7% of allowed cases (in the 87% percentile). Per MPEP § 714.14, a Quayle action indicates that all claims are allowable but formal matters remain. This examiner frequently uses Quayle actions compared to other examiners, which is a positive indicator that once substantive issues are resolved, allowance follows quickly.

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.
  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

Relevant MPEP Sections for Prosecution Strategy

  • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
  • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
  • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
  • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
  • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
  • MPEP § 1214.07: Reopening prosecution after appeal

Important Disclaimer

Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.